Firstly
feed the strap around the box/pack to be strapped, it is generally easier
to pull the strap from the coil with the coil in front of
you.

Secure
the cut end of the strap under the gripper plate, this plate is raised and
lowered by squeezing the handle and the base together. Be sure to leave
enough strap in front of the tensioner in order to place the
seal.

Next
feed the other end of the strap through the cutter housing (A) at the
front and the windlass (B). For greater detail, click here

Tension
the strap to the desired amount by cranking the handle as
shown.

Clip
the seal over the strap where they run one above the other.

Crimp
the seal into place.

With
the seal crimped in place, squeeze the handle and the base together. This
will do three things, the cutter in the cutter housing (A) will cut the
strap from the coil, the windlass will disengage and release the tension
(B) and the gripper plate (C) will be raised allowing the removal of the
tool from the completed strap.